Sewer pipe



Aug. 23, 1927.

O. R'. HUMPHREYS SEWER PIPE v 2 sheets-sheet 1 Filed Feb. 6 1926' ().R.'Humphreys.`

1,639,999 Aug- 23 1927' O R, HuMPHREYs SEWER PIPE Filed Fem@ 192e f 2 sheets-sheet 2 l' u1G.

O.R.Humphreys This invention relates to sewer pipes, or

OMAR E HUMPHEEYs the like and has particular reference to a novel joint for the pipe sections.

An object of the invention is to provide pipe joints which may be sealedv without waste of cement as heretofore.

Another object is, to provide such aconst-ruction for a joint that it may be sealed by flowing the plastic sealing cement downwardly tlius omitting overhead sealing.

A still further object is to provide pipes which are adapted to be laid in trenches, the width of said trenches being substantially the same as the diameter of the pipes, thus saving excavating expense.

Another object is to provide av reinforced sealing joint.

A further object is to provide a better sealed and hence more ydurablejoint than heretofore.

Another object .is to provide such a construction that manufacture will be cheap and (labor of installation economical and theinvention includes such further objects and advantages as appear in the following detailed description, in which Fig. 1 is a cross sectional view 'of a sewer pipe joint taken along the dotted line 1 1 of Fig. 5 and looking in the direction of the arrow, the contour of a trench being show in dotted lines. p

Fig. 2 is a similar view along dotted line 2 2 of Fig. 5.

' Fig. 3 is an end viewv of a pipe section showing its inner and outer segmental flanges. j

Fig. 4 is a. view of the opposite end of the pipe section shown in Fig. 3, illustrating its inner and outer segmental flanges.

Fig. 5 is a sideelevation showing two pipe sections disposedy end to end ready to be sealed.

Fig. 6 is a longitudinal section of the pipe sections shown in Fig. 5 the joint sealing cement being omitted.

Referring now to the drawing in which like reference characters indicate like parts, numerals 10 represent cylindrical pipe sections adapted to be connected when disposed end to end, said pipe sections preferably being constructed of concrete or similar adhesive material and to be reinforced by metallic strands 11 disposed longitudinally and embedded in their walls, or strands 11 disposed circularly therein.

Application ledLFebruary 6` 1926. Serial No.. 86,604.-

PA-TE-NT OFFICE. f

ory OMAHA, NEBRASKA. f

SEWER PIPE.

Each end of each section is provided with a continuous flange which projects beyond its end, `bntfor convenience of description and on account of the novel construction, cooperation ofparts and useful features-'to be discloseththey are numbered separately.

Numeral 12 indicates a segmental flange for one of` the lends of each section. This flange` is disposed flush with the concave surface of a sectiony andfor pipe sections having a considerable diameter, said flanges 12 preferably project vvapproximately six inches beyond the end ofthe pipe-section.

Numeral 13 indicates a second segmental flange for the same end of the pipe section as that of the flange last mentioned, and is disposed flush with the convex surface'of a sect-ion and projects beyond the end of the section the same distance as the'projection of flange 12. I j

By referring to Fig. 3 it will be seen that each flange 12 and 13 occupies an arc of nearly 180 degrees',- their inner ends being connected by inclined ilangesll, the inclination of members 14 being downwardly and outwardly ofthe end of a section.

That end of each cylindrical pipe section opposite to the flanges last described is provided'with a pairof segmental'iianges 15 Aand 16, best shown in Fig. 4 of the drawings, the'up'per fiange 16 being designated as'an outer flange since it is disposed at the f convex surface of a pipe Ysection and the lower segmental flange being designatedas anv inner flange since it is disposed at the concave side of a pipesection, said flanges 15 and 16 being approximately of equal lengthy andv of such proportions that they project a lesser distance beyond the end of a section than the projection of the flanges,

12and 13. y i

As clearlyshown in the drawings, all of of the yflanges have 'a lesser `thickness than one-half the thickness of the wall of a section, and when the sections are disposed end to end an vupper .recess 17, as clearly shown in Fig. 5 of the drawings will be provided which opens on the Vouter or convex sides of the sections, and a lower recess 18 will be formed to open on the inner or concave sides of the sections, as best shown in Fig 6. Also a secondary recess 19 will be fit) and 15 opening on the recess 18, all of said recesses 17, 18, 19 and 20 occupying arcs of nearly 180 degrees.

By referring to Fig. 4 it will be seen that the ends of the flanges 15 and 16 are disposed in spaced relation to permit the in- .and similar reinforcing strands 22 are disposed inwardly of the flange 13 and also have parts embedded in the wall of the section.

` Numeral 23 indicates a plurality of reinforcing strands which are imbedded in and have parts projecting outwardly of that end of the wall of a section opposite to that last described, to lie adjacent to the end of the flange 16, and similai reinforcing strands 24 are disposed adjacent to the end of the flange 15, and when the pipe sections are disposed end' to end, the strands 21 and 23 will be disposed in overlapped relation in the recess 17 said strands 22 and 24 beingdisposed in a recess 18.

It will be seen that the parts as described operate to great advantage. The width of a trench 25, shown by broken lines in Fig 1, may have a width corresponding to the diameter of the sections. Since the pipe sections are disposed with their flanges 12 uppermost, the recesses 17 `and 19 will, of course, be disposed in similar positions so that these re cesses may be conveniently filled, the advantage being that the plastic cement operating as an adhesive filler may be applied poured,

= or plastered into these recesses without waste of material, and at a very limited expense for labor, the walls of the trench being disposed closely adjacent to the pipe sections and tending to prevent said waste.

The inner recesses 18 and 2O are filled by a workman, who, by assuming a stooping position may readily accomplish this work, and, of course there will be no waste of material since the recesses 18 open on the concave parts of the pipe sections.

While I have not shown any adhesive filler in the drawings except the filler 27 illustrated in Fig. 1 it will be understood that all of the recesses mentioned for the joint are to be filled, including the space or rely from the body portion and each'coin'posed of a substantially semi-circular. section ofy large radius and a semi-circularsection of small radius, and the sections of large and small radius being disposed to opposite sides of the body portion at opposite ends, the

shallow flange having gaps between the ends of its semi-circular sections, and bridge por-v tions arranged at an angle between the ends of the semi-circular sections of the deep flange, whereby in interlocking a sewer pipe ,Y

section withv a section already iiirplace the end with the shallow flange'may be fitted ovei the deep flange section of small diameter and guided into position by said inclined bridge portions. s f

2. A sewer pipe section comprising a substantially cylindrical body portion having a deep flange at one end and a' shallow flange at its other end, said flangesextending axially from the body portion and each comprising a semi-circular sections of different diameters, the relatively deep flange having inclined bridge portions between the semicircular sections thereof for interbiacing the sections one against the other andthe 1 shallow flange having gaps between the ends of its semi-circular sections for the reception of the bridge portionsof an adjacent pipe section, and reinforcements einbedded in the body portion and ext-ending at one end through the semi-circular section of large diameter of the shallow flange and at its other end extending from the body portion in spaced relation beyond ,the semicircular section of small diameter ofthe deep flange and adapted to overlap with the reinforcement of the adjacent pipe section when the sections are brought together.

In testimony whereof, I have aflixed my signature.

OMAR n. HUMrHRiiis. 

